Problem: H2 reacts with the halogens (X2) according to the following reaction: H2(g) + X2(g) ⇌ 2 HX(g), where X2 can be Cl2, Br2, or I2.Reactant/ProductΔH˚f (kJ/mol)ΔS˚f (J/mol K) H2(g)0130.7Cl2(g)0223.1HCl(g)–92.3186.9Br2(g)30.9245.5HBr(g)–36.3198.7I2(g)62.42260.69HI(g)26.5206.6Calculate ΔG˚ for the reaction between hydrogen and I2.

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H2 reacts with the halogens (X2) according to the following reaction: H2(g) + X2(g) ⇌ 2 HX(g), where X2 can be Cl2, Br2, or I2.

Reactant/ProductΔH˚f (kJ/mol)ΔS˚f (J/mol K) 
H2(g)0130.7
Cl2(g)0223.1
HCl(g)–92.3186.9
Br2(g)30.9245.5
HBr(g)–36.3198.7
I2(g)62.42260.69
HI(g)26.5206.6

Calculate ΔG˚ for the reaction between hydrogen and I2.

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